Unit History: Dart Containerline

The Dart story begins with a small machine shop in Mason, Michigan known as Dart Manufacturing Company. Established in 1937, this modest business prospered through the manufacture of such products as plastic key cases, steel tape measures, and identification tags for the armed services. Subsequent experimentation with expandable polystyrene in the late 1950s led to a line of high quality insulated foam cups, and Dart Container Corporation was born.